* {
	margin: 0;
	padding: 0;
}

a {
	text-decoration: none;
	color: #ffffff;
}

header {
	background: #666666;
}

header>div {
	width: 1050px;
	margin: 0 auto;
	font-family: PingFangSC-Regular;
	font-size: 12px;
	color: #FFFFFF;
	letter-spacing: 0.3px;
	padding: 6px 0 7px 0;
	/*margin-left: 421px;*/
}

header span:nth-child(2) {
	margin-left: 79px;
}

header span:nth-child(2) {
	padding: 0 21px 0 0;
}

header span:nth-child(4) {
	padding: 0 0 0 21px;
}

nav{
	width: 100%;
	height: 580px;
	background: url(../img/轮播.png) no-repeat no-repeat;
	position: relative;
}
nav>.brand{
	position: absolute;
	left: 12%;
	top: 5%;
}
nav>div:last-child{
	color: #ffffff;
	position: absolute;
	left: 18%;
	top: 35%;
}
nav span:nth-child(1){
	
	font-size: 56px;
}
nav span:nth-child(2){
	font-size: 22px;
}
.title {
	margin-top: 156px;
}

.title>div {
	font-family: PingFangSC-Semibold;
	font-size: 40px;
	color: #333333;
	letter-spacing: 0;
	width: 360px;
	margin: 0 auto;
}

.RQ {
	height: 530px;
}

.RQ>div {
	width: 947px;
	margin: 0 auto;
	display: flex;
	justify-content: space-between;
	margin-top: 127px;
}

.RQ p {
	text-align: center;
	font-family: PingFangSC-Regular;
	font-size: 20px;
	color: #333333;
	letter-spacing: 0;
	margin-top: 21px;
}

.RQ>div>div {
	width: 313px;
	height: 313px;
}

.RQ img {
	width: 100%;
	transition:All 1s ease-in-out;
    -webkit-transition:All 1s ease-in-out;
    -moz-transition:All 1s ease-in-out;
    -o-transition:All 1s ease-in-out;
}

.content {
	background: #f2f2f2;
	height: 869px;
}

.content>.loveyou {
	padding-top: 108px;
}

.content>.loveyou>div:first-child {
	font-family: PingFangSC-Semibold;
	font-size: 40px;
	color: #333333;
	letter-spacing: 0;
	width: 200px;
	margin: 0 auto;
}

.content>.loveyou>div:last-child {
	margin-top: 10px;
	font-family: PingFangSC-Regular;
	font-size: 20px;
	color: #999999;
	letter-spacing: 0;
	width: 400px;
	margin: 0 auto;
}

.content>.demo {
	width: 1210px;
	margin: 0 auto;
	margin-top: 127px;
	display: flex;
	justify-content: space-between;
}

.demo>div {
	width: 270px;
}

.demo img {
	width: 100%;
	transition:All 0.5s ease-in-out;
    -webkit-transition:All 0.5s ease-in-out;
    -moz-transition:All 0.5s ease-in-out;
    -o-transition:All 0.5s ease-in-out;
}

.isme>.title {
	ont-family: PingFangSC-Semibold;
	font-size: 40px;
	color: #333333;
	letter-spacing: 0;
	width: 160px;
	margin: 0 auto;
	margin-top: 98px;
}

.isme>.mail {
	font-family: PingFangSC-Semibold;
	font-size: 36px;
	color: #2286F9;
	letter-spacing: 2.88px;
	width: 700px;
	margin: 0 auto;
	margin-top: 68px;
	text-align: center;
}
.isme a{
	color: #2286F9;
}
.isme>.service {
	font-family: PingFangSC-Semibold;
	font-size: 20px;
	color: #999999;
	letter-spacing: 0;
	width: 655px;
	margin: 0 auto;
	margin-top: 2px;
	display: flex;
	justify-content: space-between;
}

footer {
	height: 112px;
	background: #6B6B6B;
	border: 1px solid #979797;
	margin-top: 197px;
}

footer>div {
	font-family: PingFangSC-Regular;
	font-size: 14px;
	color: #FFFFFF;
	letter-spacing: 0.35px;
	width: 310px;
	margin: 0 auto;
	text-align: center;
	margin-top: 2px;
}

footer>div:first-child {
	margin-top: 25px;
}
.RQ img:hover {
    transform:rotate(360deg) scale(1.2);
    -webkit-transform:rotate(360deg) scale(1.2);
    -moz-transform:rotate(360deg) scale(1.2);
    -o-transform:rotate(360deg) scale(1.2);
    -ms-transform:rotate(360deg) scale(1.2);
}
.demo img:hover {
    transform:scale(1.2);
    -webkit-transform:scale(1.2);
    -moz-transform:scale(1.2);
    -o-transform:scale(1.2);
    -ms-transform:scale(1.2);
}
.bn{
	text-align: center;
	padding: 20px 0;
	font-size: 12px;
}

@media screen and (max-width:700px) {
	header>div{
		width: 100% !important;
		text-align: center;
	}
   nav {
   	height: 150px !important;
      width: 100%;
      background-size: 100%;
      
    }
    nav span{
    	font-size: 18px !important;
    }
    nav>div:last-child{
    	width: 150px;
    	top: 15px !important;
    	left: 15px !important;
    }
    .title{
    	margin-top: 10px;

    }
    .title>div{
    	font-size: 26px !important;
    	text-align: center;
    }
    .RQ{
    	width: 100%;
    	height: 250px;
    	
    }
    .RQ>div{
    	margin-top: 30px !important;
    	width: 100%;
    	justify-content: space-around;
    }
    .RQ>div>div{
    	width: 40%;
    }
    .demo{
    	width: 100% !important;
    	margin-top: 30px !important;
    	justify-content: space-around !important;
    }
    .demo>div{
    	width: 20%;
    }
    .mail{
    	width: 100% !important;
    	font-size: 18px !important;
    	margin-top: 30px !important;
    }
    .service{
    	width: 100% !important;
    	font-size: 16px !important;
    }
    .loveyou>div:first-child{
    	font-size: 30px !important;
    	text-align: center;
    }
    .loveyou>div:last-child{
    	
    	text-align: center;
    	width: 100% !important;
    	font-size: 16px !important;
    }
    .loveyou{
    	padding-top: 30px !important;
    }
    .content{
    	height: 270px !important;
    }
    footer{
    	margin-top: 30px;
    }
    .isme>.title{
    	margin-top: 30px;
    	font-size: 30px !important;
    	text-align: center;
    }
}